17. Acid and Base Equilibrium

Determine the pH of a solution made by dissolving 6.1 g of sodium cyanide, NaCN, in enough water to make a 500.0 mL of solution. (MW of NaCN = 49.01 g/mol). The K_a value of HCN is 4.9 × 10⁻¹⁰.

The pH of 2.65 m CH₃NH_2(aq) is 12.54. determine the value of K_b for methylamine.